(1058) Grubba Main-belt Asteroid
Discovered on 22 June 1925 by G. Shajn at Simeis.
Where Grubba is today
Seen from above the solar system on 2026-10-14: Grubba is 1.81 au from the Sun and 1.23 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1058 |
| Provisional designation | 1925 MA |
| Orbit class | Main-belt Asteroid |
| Diameter | 10.9 km (#4,614 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.201 |
| Rotation period | 46.3 hours |
| Spectral type | S |
| Absolute magnitude (H) | 11.85 |
| Orbital period | 3.25 years |
| Semi-major axis | 2.20 au |
| Perihelion – aphelion | 1.78 – 2.61 au |
| Eccentricity | 0.188 |
| Inclination | 3.69° |
| Closest distance between its orbit and Earth's (MOID) | 0.773 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.